Question

Hi, I have problem solving this problem, can anyone help?
I have no idea..
Please help me solving the problem step by step with well explanation.
Thanks in advance!

谢谢

My sister bought a home in east county and I drove out there to watch a movie with her. As I headed away from the coast, I noticed the temperature on my car’s outside thermometer kept rising. I recorded a few data points as (distance from coast in miles,temperature in ◦F). Once I got home, I created a linear model in R and got the equation Temp = 65.3 + 1.2 · (Distance).

a. Interpret the numbers in this equation given our setting.

b. How far does the model predict I would need to drive east from the coast for the temperature to reach 100◦F? Using Google Maps, approximate what city this would be along Interstate 8.

c. Because of elevation changes, microclimates, and other local phenomena, the relationship be- tween distance and temperature does not have a perfect correlation of 1. Indeed, my data gave a correlation of 0.82. If my friend had been making the reverse of my journey when I collected the data, roughly what would his correlation have been? (Assume he measures distance traveled west from his house.)

Thank you!

Answer 1